Dave--

We also schedule a Field Manager, 2 tow pilots (AM & PM with some
overlap), a duty instructor (AM only), and 2 field assistants for every
weekend and holiday day. This works out to 3 duties per season for
field managers and assistants, about 10-12 for tow pilots, and 6 for
instructors. In addition, we need 3 CFIGS per day and the volunteers
normally fill in the slack for each day--but with a duty instructor we
aare always certain of one CFIG present.

Frankly, the system is not perfect, but it works and we have not found
anything better. Each group self schedules--for example Ops for the
filed crew, and the tow pilots and instructors schedule themselves. If
you instruct or tow you do not have to serve field duty. We do have a
substantial fine for "no shows" and that helps.

Our weekday PM flying days are strictly volunteer, and we manage them
by having a dedicated CFIG and tow pilot for Wednesday and Thursday PM.
The remaining instructors (we normally have 2 to 4) are on a "show up"
basis.

I am certain there may be a better way, and we will be watching the
forum for ideas.

Regards--

Skip Guimond, Phila Glider Council